/*-
 * Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
 * Redistribution and modifications are permitted subject to BSD license.
 */
#ifndef _GeneralizedTime_H_
#define _GeneralizedTime_H_

#include <OCTET_STRING.h>

#ifdef __cplusplus
extern "C"
{
#endif

    typedef OCTET_STRING_t GeneralizedTime_t; /* Implemented via OCTET STRING */

    extern asn_TYPE_descriptor_t asn_DEF_GeneralizedTime;

    asn_struct_print_f GeneralizedTime_print;
    asn_constr_check_f GeneralizedTime_constraint;
    der_type_encoder_f GeneralizedTime_encode_der;
    xer_type_encoder_f GeneralizedTime_encode_xer;

    /***********************
 * Some handy helpers. *
 ***********************/

    struct tm; /* <time.h> */

    /*
 * Convert a GeneralizedTime structure into time_t
 * and optionally into struct tm.
 * If as_gmt is given, the resulting _optional_tm4fill will have a GMT zone,
 * instead of default local one.
 * On error returns -1 and errno set to EINVAL
 */
    time_t asn_GT2time(const GeneralizedTime_t *, struct tm *_optional_tm4fill,
        int as_gmt);

    /* A version of the above function also returning the fractions of seconds */
    time_t asn_GT2time_frac(const GeneralizedTime_t *,
        int *frac_value, int *frac_digits, /* (value / (10 ^ digits)) */
        struct tm *_optional_tm4fill, int as_gmt);

    /*
 * Another version returning fractions with defined precision
 * For example, parsing of the time ending with ".1" seconds
 * with frac_digits=3 (msec) would yield frac_value = 100.
 */
    time_t asn_GT2time_prec(const GeneralizedTime_t *,
        int *frac_value, int frac_digits,
        struct tm *_optional_tm4fill, int as_gmt);

    /*
 * Convert a struct tm into GeneralizedTime.
 * If _optional_gt is not given, this function will try to allocate one.
 * If force_gmt is given, the resulting GeneralizedTime will be forced
 * into a GMT time zone (encoding ends with a "Z").
 * On error, this function returns 0 and sets errno.
 */
    GeneralizedTime_t *asn_time2GT(GeneralizedTime_t *_optional_gt,
        const struct tm *, int force_gmt);
    GeneralizedTime_t *asn_time2GT_frac(GeneralizedTime_t *_optional_gt,
        const struct tm *, int frac_value, int frac_digits, int force_gmt);

#ifdef __cplusplus
}
#endif

#endif /* _GeneralizedTime_H_ */
